How can i add html email template UI for email confirmation in asp.net mvc5 identity 2?

By Default asp.net mvc5 Identity 2 email confirmation comes with this code.

await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>");

Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a> I want this message in a html view.So how can i call that view from await UserManager.SendEmailAsync(...) . i want to add a html email template.So how can i do this ? Thanks